Motor-engine



(No Model.)

A. JACOBS.`

MOTOR ENGFINL.` No. 351,639.

Patented Oct. Z6, 1886.

'UNITED STATESl PATENT OFFICE.,

ALBERT JACOBS, OF CHICAGO, ILLINOIS.

lvioron-ENGINla.V

SPECIFICATION forming part of Letters Patent No. 351,639, dated October 26, 1886.

Application filed July 19, 1886. Serial No. 208,455. (No model.)

To @ZZ whom, it may concern,.-

Be it known that I, ALBERT JAooBs, a citizen of the United States, residing at Chicago,` Cook county, State of Illinois, have invented a new and useful Valve-Motion, of which the following is a specication.

My invention relates; to motorengines of the cylinder and piston type only, whether driven by steam, water, or other motive power, that may be put to such work as prevents the piston reaching the ends of its cylinder, that is applicable to all purposes, the nature of which causes a variable length of piston-stroke, thus disabling it from moving its own valve.

The object of my invention is to vprovide a means by whicha sure and effective motion .is given to the valve. I attain this object by the mechanism illustrated in the following drawings. v

. Figure 1 is a vertical section of the entire invention. y Fig. 2 is a view of the same with a cylinder whose piston is controlled by piston and auxiliary valves, towhich this invention is best adapted.

A is the cylinder; B, the piston; C, the pis toa-rod; D, the lever; E, auxiliary-valve stem; F F,bloclzs; GG,passages; HH, cocks or valves. l

Let it be supposed that steam is entering the main cylinder, Fig. 2, by the upper supply-port and passing through the upper passage, G, into cylinder A, both pistons being driven to the bottom of their cylinders, the

main engine being engaged, say, in such work as striking iron, the main piston will not reach to the very bottom of its cylinder, because ot the .iron upon which the hammer strikes. This prevents the main piston throwing its own valve; but the piston B, having a full stroke, moves the lever D, which, by contact with the lower block F, moves the valve that admits steam to the lower end of main cylinder, lower passage, G, and cylinder A, causing both pistons to rise to the top of their cylinders. The lever D being again moved by striking the upper block F, the valve is again moved and steam admitted to the top of both cylinders, both pistons descending as already shown. Where the main cylinder receives no u steam at the upper end, but depends on the weight of the hammer for the descent of its piston, steam is admitted just the same to the small cylinder, the upper port being merely closed where it opens into the main cylinder. By the proper adjustment of valves H H both pistons will speed t-he same.

I claim no particular supply-valve, the Wellknown piston and auxiliary valves being, in my judgment, the best, nor any kind of valve'- gearing; but

What I do claim as my invention, and dcsire to secure by Letters Patent, is-

The cylinder A, piston B, piston-rod C, the two valves H H, of ordinary construction, and

the two passages G G, all combined and oper- Witnesses:

F. WILLIAM KRAFT, CHARLES A. WiLLIAMs. 

